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  1. AHC: optimize Soviet performance in WW2

    Training, radios and radars do matter. Aircraft are a major threat as the 1930s unfold, so the AA guns will need to be manufactured in great quantities and qualities. AA guns require well trained crew, so again - training matters.

  2. A US 'Ju-88'

    I'm not sure why it is necessary to go with secondary, let alone with tertiary sources when primary sources are easily available. The only German trainable defensive cannon installation was in the nose and in the 'bathtub' position of some of He 111s, during the 1st years of the war. In the...

  3. A US 'Ju-88'

    A lot of people will pretend that NAA Mustang was an American design, despite the main designer on the project being the German-born Edgar Schmued ... DB-7 with V-1710s instead of R-1830s? It even has a proper bomb bay, unlike the Ju-88.

  4. WI: NACA Modified P-38

    The engines with gear-driven compressors were also able to fly above the rated altitude with the throttle fully open, hence the term 'full throttle height' as the equivalent for the term 'rated altitude' as well as the 'critical altitude'. Eg. the Merlin 65 from this graph will have it's...

  5. WI: NACA Modified P-38

    Already by the mid ww2, USAAF was more than eager to incorporate the 2-stage gear-driven superchargers on their fighter aircraft. Merlin Mustangs, P-61 (used the same 2-stage engine as the F6F-3/-5), P-63 (used the 2-stage V-1710), with P-82 in pipeline together with lightweight Mustangs (no...

  6. WI: NACA Modified P-38

    This one is much easier to read. It does not note the boost; the power is too high for the 61 in Hg (military power), as well as too low for 67 in Hg (WER) - perhaps the chart is preliminary? The Merlin 65 is equivalent of the V-1650-7, that were mostly installed on the P-51D/K. Via change of...

  7. WI: NACA Modified P-38

    V-1710 on the P-38J/L with 60 in Hg was in WER power setting, 100/130 grade fuel. The V-1650-3 and -5 in WER setting (= 67 in Hg on 100/130 grade fuel) were making much better power than at 60-61in Hg, eg. see the chart here. Greg, in his infinite wisdom, does not acknowledge the effects of the...

  8. WI: NACA Modified P-38

    I'd disagree with the notion of ability to use full throttle with a turboed ww2 aero engine, even at low levels. edit: It was possible with very high octane fuel, like the 150 grade, and/or when combined with water-alcohol injection.

  9. WI: NACA Modified P-38

    Most of the people figured out how to do things well (= engine makes such and such amount of power) at 5000 ft already by the later stages of ww1. Trick was to make the engine do the similar power at 20000+ ft, and there the turboes were supposed to be the solution. It took a while (until the...

  10. Alternate History Combat Aircraft

    As a rule, yes ( there were also the exceptions to the rule). What is your point wrt. that?

  11. WI: NACA Modified P-38

    Farman showed (via Flight magazine in May of 1935) the 2-stage S/C system where each stage was geared separately; they were attacking the altitude records already in 1932 with a 2-stage S/Ced engine. Bristol and Junkers were also doing the similar stuff, so did Piaggio with two types of 2-stage...

  12. F4U Corsairs at Midway

    Do we know the exchange (kill/loss) ratio between the F4F and Zero at Midway? Also. how many IJN aircraft were downed by CAP around Yorktown?

  13. WI: NACA Modified P-38

    RR's 2-stage superchargers were on the same shaft. Meaning that there was no option of de-clutching the 1st stage (nor the 2nd, closer to the engine), so both stages were turning at same RPM. RR's concept was copied - too late - by Jumo for the 213E and F, as well as by DB for the 603L and...

  14. WI: NACA Modified P-38

    Good call on the need to have some distance between the cylinders and turbine for the turboes of the early 1940s, indeed for the reasons of skimming that peak temperature form the exhaust gasses. DB 605 was with one S/C per engine, not per engine bank. The layout indeed cut the length on...

  15. F4U Corsairs at Midway

    Perhaps Yorktown lives?

  16. How "should" WWII in 1940 have gone?

    I'm not very fond of people apparently knowing better what I've posted than what Ive really posted. Yes, I try to stay clear from the unrealistic criticism, too. Yes, some discussions became frustrating. Especially when a broad brush is applied to paint what the other posters said, as well...

  17. How "should" WWII in 1940 have gone?

    My case does not ignore reality. I've accounted for the restrictions due to the resources more times than I can remember, and not just for the British. It is the issue with your posts, when you use the preventive painting of people ( that dare to suggest that British should've done something...

  18. How "should" WWII in 1940 have gone?

    At any suggestion regarding the alternatives to the British rearmament from the early 1930s, you don't have a problem accusing the ones making the changes of painting the British civil servicemen as stupid, and do it often. So I see no point in making yet another long post (or couple of them) so...

  19. How "should" WWII in 1940 have gone?

    Later in the war, British can opt not to make/buy hundreds of Bothas and Defiants, last hundreds of Battles and Blenheims, Hundreds of tanks deemed not suitable for combat service (Centaur, Cavalier, Covenanter) can also not be made/bought. Oh, it was not the case of either bigger thanks or...

  20. How "should" WWII in 1940 have gone?

    It is always easier to accuse someone other, than to look themselves in the mirror. For each French fighters' sortie, Germans were mustering 3-4 of their own during the critical phases of the battle. Not a good thing on it's own, and doubly so when the difference in technical and tactical...
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